A new family of Mn12 single-molecule magnets:: replacement of carboxylate ligands with diphenylphosphinates

被引：38

作者：

Brockman, JT

Abboud, KA

Hendrickson, DN

Christou, G ^{[1
]}

机构：

[1] Univ Florida, Dept Chem, Gainesville, FL 32611 USA

[2] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92083 USA

来源：

POLYHEDRON | 2003年 / 22卷 / 14-17期

关键词：

single-molecule magnets; crystal structures; magnetic properties;

D O I：

10.1016/S0277-5387(03)00216-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis, structural characterization and magnetic properties of a new mixed ligand member of the Mn-12 family are reported. The reaction of [Mn12O12(O2CPh)(16)(H2O)(4)] (4) with diphenylphosphinic acid produces [Mn12O12(O2CPh)(7)(O2PPh2)(9))(H2O)(4)] (5). The crystal structure of 5 shows the [Mn12O12](16+) core is retained and exhibits two abnormally oriented Jahn-Teller elongation axes. The ligand distribution alternates about the core with the ninth Ph2PO2- group in an equatorial position. Magnetic studies indicate an S = 10 ground state and retention of the single-molecule magnetism behavior. (C) 2003 Elsevier Science Ltd. All rights reserved.

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页码：1765 / 1769

页数：5

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